Electron scattering of mass-inverted in graphene quantum dots
- URL: http://arxiv.org/abs/2202.12877v1
- Date: Fri, 25 Feb 2022 18:37:26 GMT
- Title: Electron scattering of mass-inverted in graphene quantum dots
- Authors: Fatima Belokda, Ahmed Jellal, El Houssine Atmani
- Abstract summary: We study the scattering of Dirac electrons of circular graphene quantum dot with mass-inverted subject to electrostatic potential.
It is found that the presence of a mass term outside in addition to another one inside the quantum dot strongly affects the scattering of electrons.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We study the scattering of Dirac electrons of circular graphene quantum dot
with mass-inverted subject to electrostatic potential. The obtained solutions
of the energy spectrum are used to determine the scattering coefficients at the
interface of the two regions. Using the asymptotic solutions at large
arguments, we explicitly determine the radial component of reflected current
density and the scattering efficiency. It is found that the presence of a mass
term outside in addition to another one inside the quantum dot strongly affects
the scattering of electrons. In particular, a non-null square modulus of the
scattering coefficient is found at zero energy.
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